<!--
NavBar 导航栏组件
https://ext.dcloud.net.cn/plugin?id=52
-->
<template>
	<view v-if="showNavBar" class="uni-navbar">
		<view :class="{ 'uni-navbar--fixed': fixed, 'uni-navbar--shadow': shadow, 'uni-navbar--border': border }" :style="{ 'background-color': backgroundColor }"
		 class="uni-navbar__content">
			<basic-status-bar v-if="statusBar" />
			<view :style="{ color: color,backgroundColor: backgroundColor }" class="uni-navbar__header uni-navbar__content_view">
				<view @click="onClickLeft" class="uni-navbar__header-btns uni-navbar__header-btns-left uni-navbar__content_view">
					<view class="uni-navbar__content_view" v-if="leftIcon && showLeftBack" >
						<basic-icons :color="color" name="icon9" size="40rpx" />
					</view>
					<view :class="{ 'uni-navbar-btn-icon-left': leftIcon }" class="uni-navbar-btn-text uni-navbar__content_view"
					 v-if="leftText.length">
						<text :style="{ color: color, fontSize: '28rpx' }">{{ leftText }}</text>
					</view>
					<slot name="left" />
				</view>
				<view class="uni-navbar__header-container uni-navbar__content_view">
					<view class="uni-navbar__header-container-inner uni-navbar__content_view" v-if="title.length">
						<text class="uni-nav-bar-text" :style="{color: color }">{{ title }}</text>
					</view>
					<!-- 标题插槽 -->
					<slot />
				</view>
				<view :class="title.length ? 'uni-navbar__header-btns-right' : ''" @tap="onClickRight" class="uni-navbar__header-btns uni-navbar__content_view">
					<view class="uni-navbar__content_view" v-if="rightIcon">
						<basic-icons :color="color" name="icon-arrow-right2" size="56rpx" />
					</view>
					<!-- 优先显示图标 -->
					<view class="uni-navbar-btn-text uni-navbar__content_view" v-if="rightText.length && !rightIcon.length">
						<text class="uni-nav-bar-right-text">{{ rightText }}</text>
					</view>
					<slot name="right" />
				</view>
			</view>
		</view>
		<view class="uni-navbar__placeholder" v-if="fixed">
			<basic-status-bar v-if="statusBar" />
			<view class="uni-navbar__placeholder-view" />
		</view>
	</view>
</template>

<script>
import ua from 'utils/ua'
import sdk from 'sdk'
export default {
	name: "NavBar",
	props: {
		title: {
			type: String,
			default: ""
		},
		leftText: {
			type: String,
			default: ""
		},
		rightText: {
			type: String,
			default: ""
		},
		leftIcon: {
			type: String,
			default: ""
		},
		rightIcon: {
			type: String,
			default: ""
		},
		fixed: {
			type: [Boolean, String],
			default: false
		},
		color: {
			type: String,
			default: "#000000"
		},
		backgroundColor: {
			type: String,
			default: "#FFFFFF"
		},
		statusBar: {
			type: [Boolean, String],
			default: false
		},
		shadow: {
			type: [String, Boolean],
			default: false
		},
		border: {
			type: [String, Boolean],
			default: true
		},
		clickLeftBack: { // 点击返回按钮区域是否返回上一页/路由
			type: [String, Boolean],
			default: true
		},
		showLeftBack: {
			type: [Boolean, String],
			default: true
		}
	},
	data() {
		return {
			showNavBar: true,
			// showNavBar: ua.isMPWebview || ua.isAppWebview // 仅app内嵌webview和小程序显示自定义导航头部
		}
	},
	mounted() {
		if(uni.report && this.title !== '') {
				uni.report('title', this.title)
		}
	},
	methods: {
		onClickLeft() {
			if (this.clickLeftBack) {
				sdk.navigateBack()
			} else {
				this.$emit("clickLeft");
			}
		},
		onClickRight() {
			this.$emit("clickRight");
		}
	}
};
</script>

<style lang="scss" scoped>
	$nav-height: 88rpx;
	.uni-nav-bar-text {
		/* #ifdef APP-PLUS */
		font-size: 34rpx;
		/* #endif */
		/* #ifndef APP-PLUS */
		font-size: $uni-font-size-lg;
		/* #endif */
	}
	.uni-nav-bar-right-text {
		font-size: $uni-font-size-base;
	}

	.uni-navbar {
		width: 750rpx;
        font-family: PingFangSC-Medium, PingFang SC;
	}

	.uni-navbar__content {
		position: relative;
		width: 750rpx;
		background-color: $uni-bg-color;
		overflow: hidden;
	}

	.uni-navbar__content_view {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		align-items: center;
		flex-direction: row;
		// background-color: #FFFFFF;
	}

	.uni-navbar__header {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		width: 750rpx;
		height: $nav-height;
		line-height: $nav-height;
		font-size: 32rpx;
		font-weight: bolder;
		// background-color: #ffffff;
	}

	.uni-navbar__header-btns {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-wrap: nowrap;
		width: 120rpx;
		padding: 0 6px;
		justify-content: center;
		align-items: center;
	}

	.uni-navbar__header-btns-left {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		width: 150rpx;
		justify-content: flex-start;
	}

	.uni-navbar__header-btns-right {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		width: 150rpx;
		padding-right: 30rpx;
		justify-content: flex-end;
	}

	.uni-navbar__header-container {
		flex: 1;
	}

	.uni-navbar__header-container-inner {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex: 1;
		align-items: center;
		justify-content: center;
		font-size: $uni-font-size-base;
	}


	.uni-navbar__placeholder-view {
		height: $nav-height;
	}

	.uni-navbar--fixed {
		position: fixed;
		z-index: 998;
	}

	.uni-navbar--shadow {
		/* #ifndef APP-NVUE */
		box-shadow: 0 1px 6px #ccc;
		/* #endif */
	}

	.uni-navbar--border {
		border-bottom-width: 1rpx;
		border-bottom-style: solid;
		border-bottom-color: $uni-border-color;
	}
</style>
